Ia 8 Identification And Authentication

---
name: "IA-8_identification-and-authentication-non-organizational-users"
description: "Uniquely identify and authenticate non-organizational users or processes acting on behalf of non-organizational users."
category: "authentication"
version: "5.2.0"
author: "cyberstrike-official"
tags:
  - nist
  - sp800-53
  - rev5
  - ia-8
  - ia
tech_stack:
  - aws
  - azure
  - active-directory
  - linux
  - windows
cwe_ids:
  - CWE-287
chains_with:
  - AC-2
  - AC-6
  - AC-14
  - AC-17
  - AC-18
  - AU-6
  - IA-2
  - IA-4
  - IA-5
  - IA-10
prerequisites: []
severity_boost:
  AC-2: "Chain with AC-2 for comprehensive security coverage"
  AC-6: "Chain with AC-6 for comprehensive security coverage"
  AC-14: "Chain with AC-14 for comprehensive security coverage"
---

# IA-8 Identification and Authentication (Non-organizational Users)

## High-Level Description

**Family:** Identification and Authentication (IA)
**Framework:** NIST SP 800-53 Rev 5

Non-organizational users include system users other than organizational users explicitly covered by [IA-2](#ia-2) . Non-organizational users are uniquely identified and authenticated for accesses other than those explicitly identified and documented in [AC-14](#ac-14) . Identification and authentication of non-organizational users accessing federal systems may be required to protect federal, proprietary, or privacy-related information (with exceptions noted for national security systems). Organizations consider many factors—including security, privacy, scalability, and practicality—when balancing the need to ensure ease of use for access to federal information and systems with the need to protect and adequately mitigate risk.

## What to Check

- [ ] Verify IA-8 Identification and Authentication (Non-organizational Users) is documented in SSP
- [ ] Confirm control is operating effectively
- [ ] Review evidence of continuous monitoring for IA-8

## How to Test

### Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for IA-8 implementation details. Verify the organization has documented how this control is satisfied.

### Step 2: Validate Implementation

```
# For cloud environments, use cloud-audit-mcp tools
# For on-premises, review system configurations directly

# Example: Check if account management policies exist
grep -r "account.management\|access.control" /etc/security/ 2>/dev/null
```

### Step 3: Test Operating Effectiveness

Verify the control is actively functioning, not just documented. Check logs, configurations, and operational evidence.

## Tools

| Tool            | Purpose                        | Usage                      |
| --------------- | ------------------------------ | -------------------------- |
| cloud-audit-mcp | Check authentication settings  | `cloud_audit_iam_policies` |
| hackbrowser | Test authentication mechanisms | `hackbrowser`        |

## Remediation Guide

### Control Statement

Uniquely identify and authenticate non-organizational users or processes acting on behalf of non-organizational users.

### Implementation Guidance

Non-organizational users include system users other than organizational users explicitly covered by [IA-2](#ia-2) . Non-organizational users are uniquely identified and authenticated for accesses other than those explicitly identified and documented in [AC-14](#ac-14) . Identification and authentication of non-organizational users accessing federal systems may be required to protect federal, proprietary, or privacy-related information (with exceptions noted for national security systems). Organizations consider many factors—including security, privacy, scalability, and practicality—when balancing the need to ensure ease of use for access to federal information and systems with the need to protect and adequately mitigate risk.

## Risk Assessment

| Finding                                                                           | Severity | Impact                                       |
| --------------------------------------------------------------------------------- | -------- | -------------------------------------------- |
| IA-8 Identification and Authentication (Non-organizational Users) not implemented | High     | Identification and Authentication            |
| IA-8 partially implemented                                                        | Medium   | Incomplete Identification and Authentication |

## CWE Categories

| CWE ID  | Title                   |
| ------- | ----------------------- |
| CWE-287 | Improper Authentication |

## References

- [NIST SP 800-53 Rev 5 - IA-8](https://csrc.nist.gov/projects/cprt/catalog#/cprt/framework/version/SP_800_53_5_1_1/home?element=ia-8)
- [NIST SP 800-53A Rev 5 (Assessment Procedures)](https://csrc.nist.gov/pubs/sp/800/53/a/r5/final)
- [NIST SP 800-53 Rev 5 Full Catalog](https://csrc.nist.gov/pubs/sp/800/53/r5/upd1/final)

## Checklist

- [ ] Control documented in SSP
- [ ] Implementation evidence collected
- [ ] Operating effectiveness validated
- [ ] Continuous monitoring in place
- [ ] Related controls (AC-2, AC-6, AC-14, AC-17, AC-18) reviewed